Yes, I think it is ok to skip notes at first. I taught guitar for a number of years and tried to steer clear from any actual notation or note names (other than the string names) at first.
I think tablature is a great resource because you can graphically see how to play a particular tune without getting into too much detail. Most rock songs are only available in tab form.
A good way to get started in learning actual note names (when you're ready) would be to:
- Learn scales. Dorian, Phrygian, Aeolian, Lydian Mixolydian, Ionian. These will also help when starting to learn metal. Most metal solos revolve around one or more of these scales.
- Take a look at a guitar fretboard chart with the note names written in.
This is from (http://www.guitar-and-bass.com/guitar/images/charts/basics/basics-letternames-chromatic-flats.jpg)
